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Projectile Nose Mass Abrasion of High-Speed Penetration into Concrete
Joint Authors
Wu, Haijun
Wang, Yinan
Qian, Fei
Huang, Fenglei
Source
Advances in Mechanical Engineering
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-08-30
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Based on the dynamic spherical cavity expansion theory of concrete and the analysis of experimental data, a mass abrasion model of projectile considering the hardness of aggregates, the relative strength of target and projectile, and the initial impact velocity is constructed in this paper.
Furthermore, the effect of mass abrasion on the penetration depth of projectile and the influence of hardness of aggregates and strength of projectile on penetration depth and mass loss are also analyzed.
The results show that, for the ogive-nose projectile with the CRH of 3 and aspect ratio of 7 penetrating the concrete of 35 MPa, the “rigid-body penetration” model is available when the initial impact velocity is lower than 800 m/s.
However, when the initial impact velocity is higher than 800 m/s, the “deforming/eroding body penetration” model should be adopted.
Through theoretical analysis and numerical calculation, the results indicate that the initial impact velocity is the most important factor of mass abrasion.
The hardness of aggregates and the strength of projectile are also significant factors.
But relatively speaking, the sensitivity of strength of projectile to mass abrasion is higher, which indicates that the effect of projectile material on mass abrasion is more dramatic than the hardness of aggregates.
American Psychological Association (APA)
Wu, Haijun& Qian, Fei& Huang, Fenglei& Wang, Yinan. 2012. Projectile Nose Mass Abrasion of High-Speed Penetration into Concrete. Advances in Mechanical Engineering،Vol. 2012, no. 2012, pp.1-9.
https://search.emarefa.net/detail/BIM-461334
Modern Language Association (MLA)
Wu, Haijun…[et al.]. Projectile Nose Mass Abrasion of High-Speed Penetration into Concrete. Advances in Mechanical Engineering No. 2012 (2012), pp.1-9.
https://search.emarefa.net/detail/BIM-461334
American Medical Association (AMA)
Wu, Haijun& Qian, Fei& Huang, Fenglei& Wang, Yinan. Projectile Nose Mass Abrasion of High-Speed Penetration into Concrete. Advances in Mechanical Engineering. 2012. Vol. 2012, no. 2012, pp.1-9.
https://search.emarefa.net/detail/BIM-461334
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-461334